add conda-oci-mirror

[jaimergp]

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@wolfv - adding this so we can install it in some pipelines. Unsure about the versioning, release status, etc.

xref conda-forge/conda-forge-metadata#6

[conda-forge-webservices]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipes/conda-oci-mirror) and found it was in an excellent condition.

[beckermr]

@wolfv Do you consent to maintain here?

[wolfv]

I do! :)

[jaimergp]

Needs channel-mirrors/conda-oci-mirror#27